Question: You have 5 000 in a 50 margin account You have

You have $5,000 in a 50% margin account. You have been following a stock that you think you want to buy. The stock is priced at $52. You decide that if the stock falls to $50, you would like to buy it. You place a limit order to buy 300 shares at $50. The stock falls to $50. What happens?